Evolution of the 3GPP System

Evolution of the 3GPP System

Stephen Hayesp y

Chair [email protected]

1#3GPP Workshop on LTE, Chennai, India, 1 June, 2010

ContentsContents

• What is 3GPP• What is 3GPP• What 3GPP works on• Evolution of the Radio Interface• Evolution of the Radio Interface• Evolution of the Core Network• Evolution of Services• Evolution of Services• More information


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3GPP – the Partnership

• 3GPP Stands for 3rd Generation Partnership Project*The Partners are Standards Developing Organizations:• The Partners are Standards Developing Organizations:

(Japan) (China) (Korea)

(Japan)(USA) (Europe)

• Contribution driven …companies participate in 3GPP through their membership of one of these “Organizational Partners”

• Currently over 350 Individual Members (Operators, Vendors, Regulators)• 13 Market Representation Partners (giving perspectives on market needs and

drivers)


*3GPP is not constrained to 3rd Generation. It includes work on both 2nd and 4th generation technologies.

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3GPP – the Work3GPP the WorkApproximately 185 meetings per yearMany co located meetings totalling around 600 delegatesMany co-located meetings, totalling around 600 delegatesSome meetings receive 1000 documents

1#3GPP Workshop on LTE, Chennai, India, 1 June, 2010 4

What does 3GPP Specify?What does 3GPP Specify?

• 3GPP Specified Radio Interfaces3GPP Specified Radio Interfaces• 2G radio: GSM, GPRS, EDGE• 3G radio: WCDMA, HSPA, LTE• 4G radio: LTE Advanced• 4G radio: LTE Advanced

• 3GPP Core Network• 2G/3G: GSM core network• 3G/4G: Evolved Packet Core (EPC)

• 3GPP Service Layer• GSM servicesGSM services• IP Multimedia Subsystem (IMS)• Multimedia Telephony (MMTEL)• Support of Messaging and other OMA functionality• Support of Messaging and other OMA functionality• Emergency services and public warning• Etc.


3GPP Release Concept

HighSpeed

Accesses

IP CoreNetwork Services

R99 R4 R5 R6 R7 R8 R9 R10

201120102009200820072006200520042003200220012000

UM

TS

HS

PA

DL

HS

PA

UL

LTE

LTE

Adv

HS

PA

+

EPC

Com

mIM

S

IMS

MM

Tel


CM

General Directions of 3GPP Evolution

• Radio Interfaces• Higher Data Throughput

• Lower Latency

• More Spectrum Flexibility

• Improved CAPEX and OPEX

• IP Core Network• IP Core Network• Support of non‐3GPP Accesses

• Packet Only Supporty pp

• Improved Security

• Greater Device Diversity

• Service Layer• More IMS Applications (MBMS, PSS, mobile TV now IMS enabled)


• Greater session continuity

Evolution of the Radio InterfaceEvolution of the Radio InterfaceStandards availability

EDGE EDGE+

384Kb/s 1Mb/s

W-CDMA HSPA HSPA+

384Kb/s 1Mb/s

384Kb/s 42Mb/s18Mb/s

LTE LTE-Advanced

384Kb/s 42Mb/s18Mb/s

100Mb/ 1000Mb/s100Mb/s 1000Mb/s

20002000 20102010


8

GPRS/EDGE EvolutionGPRS/EDGE Evolution

• Release 8 and earlier• GERAN/LTE Interworking• General corrections

• Release 9• Hybrid Location• Multi Standard Radio (MSR)• General corrections

• Multicarrier BTS• A-GNSS (Global Navigation

• Multi Standard Radio (MSR)

• Release 10Satellite Systems) • Local Call Local Switch

TSG GERAN has been continuing to evolve GSM EDGE technology towards services that approach UMTS and LTE levels Andrew Howell, 3GPP GERAN Chairman


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UMTS Evolution (HSPA)UMTS Evolution (HSPA)240 Operators in > 100 countries…Forecast 1 billion subscriptions by 20113GPP R5 & R7 added MIMO antenna and 16QAM (Uplink)/ 64QAM (Downlink)

• Improved spectrum efficiency (modulation

3GPP R5 & R7 added MIMO antenna and 16QAM (Uplink)/ 64QAM (Downlink) modulation

efficiency (modulation 16QAM, Reduced radio frame lengths

• New functionalities within• New functionalities within radio networks (incl.re-transmissions between NodeB and the RadioNodeB and the Radio Network Controller)

• Latency reduced (100ms for HSDPA and 50ms forfor HSDPA and 50ms for HSUPA)


10

LTE characteristics

• LTE introduced in Rel 8• LTE introduced in Rel 8• Minor improvements in Rel 9 and Rel 10

• Significantly increased data throughput• Downlink target 3-4 times greater than HSDPA Release 6• Uplink target 2-3 times greater than HSUPA Release 6

• Increased cell edge bit rates• Downlink: 70% of the values at 5% of the Cumulative Distribution Function (CDF)• Uplink: same values at 5% of the Cumulative Distribution Function (CDF)

• Significantly reduced latencyg y y• High mobility• Cell ranges up to 5 km; with best throughput, spectrum efficiency and

mobility Cell ranges up to 30 km; Mobility with some degradation inmobility. Cell ranges up to 30 km; Mobility with some degradation in throughput and spectrum efficiency permitted. Cell ranges up to 100 km; Supported; degradations accepted


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LTE-Advanced (R10)LTE Advanced (R10)

LTE LTE-Advanced

3G 4G

You are here

• Smooth transition from 3G to 4G• LTE Advanced to be the main feature of 3GPP Release 10• LTE-Advanced to be the main feature of 3GPP Release 10


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What will LTE-Advanced deliver?

• Support for wider Bandwidth (Up to 100MHz)

• Up link transmission scheme100MHz)

• Downlink transmission scheme• Improvements to LTE by using 8x8

MIMO

• Improvements to LTE• Data rates up to 500Mb/s

• Relay functionality• Data rates of 100Mb/s with high mobility

and 1Gb/s with low mobility

y y• Improving cell edge coverage• More efficient coverage in rural

areas• CoMP (coordinated multiple point

transmission and reception)• Downlink coordinated multi-point

t i itransmission• Uplink coordinated multi-point

reception• Local IP Access (LIPA) & Enhanced

LTE LTE-Advanced

3G 4G

Local IP Access (LIPA) & Enhanced HNB to allow traffic off-load

You are here


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Spectrum Issuesp

• LTE Bands:

• Re-farmingg900/1800MHz GSM bands are attracting a lot of attention, as “spectrum re-farming” in those bands is seen as one way to allow the roll out of mobile broadband services.

Additional spectrum can be added to the specifications as required.

(eg. 3500MHz currently being added)


14TS 36.101 v9.2.0

Evolution of the Core NetworkEvolution of the Core Network

• New Core Network defined in conjunction with LTE• New Core Network defined in conjunction with LTE

• Characteristics of EPC (Evolved Packet Network)• IP Based Core Network

• Flat structure

• PMIP and GTP based mobility

• Supports both 3GPP and non‐3GPP Accesses

• Policy Control

• Optimized for packet based multimedia


EPS (EPS = LTE + EPC) ArchitectureEPS (EPS = LTE + EPC) Architecture

HSS R

SWx

• Multiple roaming models• Mobility between access technologies

hPCRF Operator's IP Services

(e.g. IMS, PSS etc.)

HPLMN

3GPP AAA Server

SGi

Gx

Rx

S6b

S6a

PDN Gateway

Mobility between access technologies• Many 3GPP access technologies• Non‐3GPP access

SWd

vPCRF

S9

S6b

S8

3GPP Serving G t

LTELTELTELTE1800

LTE2600

ePDG

SWm

3GPP AAA Proxy

Gxb

GxcAccess Gateway

GSM1900EDGE

GSM1800

GSM450GSM900 GERAN

UTRAN

SWn

TrustedN 3GPP IP

Non-3GPP Networks

VPLMNePDG

UntrustedN 3GPP IP

GxaUTRAN

UTRAN

HSPAUTRAN HSPA+ Non-3GPP IP

Access SWaNon-3GPP IP

Access STa

S2c

S2cUE

S2c

S

HRPD

1 RTT 802 163GPP2

1#3GPP Workshop on LTE, Chennai, India, 1 June, 2010 WIMAX

1xRTT 802.16WLAN

3GPP2

EPC Core NetworkEPC Core Network

• Flat EPC architecture with only two network nodes for EPC control planey p• PS‐only architecture

• Interoperability• GTP and PMIP roaming interface (S5/S8)g ( / )• Multiple security mechanisms• Optimised interworking with legacy cellular systems, incl. CDMA• Interworking with non‐3GPP access technologies

• Access networks supported by 3GPP Core Network (EPC)• 3GPP and non‐3GPP• Trusted and untrusted• Mobile and fixed• Different security, QoS, mobility• GERAN frequency bands: 13 bands• LTE frequency bands: 19 FDD and 8 TDD bands• UTRAN frequency bands: 17 bands• IMT‐A in Rel‐10 is expected to be connected to the same Rel‐9 EPC


Additional EPC CharacteristicsAdditional EPC Characteristics

• Multi‐mode Terminal Support• Access Network Discovery and Selection Function (ANDSF)

• Home Node B (and Home e Node B) – No new services, but support of closed subscriber groups and provisioning

• Traffic offload – As internet traffic grows, there is a need to offload the radio accesses and the core network• Local IP Access (LIPA) is used from a Home Node B to access local networkLocal IP Access (LIPA) is used from a Home Node B to access local network

resources (such as a printer)• IP Flow Mobility and Seamless Offload (IFOM) is used to carry some of a UE’s

traffic over wifi to offload Home Node B access.• Selected IP Traffic Offload (SIPTO) is used to offload the mobile core network by

breaking traffic out of the network early.• SIPTO for Home Node B may be deferred to a later release

• Dual‐stack IPv4/6 connectivity• Currently working with BBF to integrate BBF accesses• Policy Control integrated with the core network


• Policy Control integrated with the core network

Services Evolution in 3GPPServices Evolution in 3GPP

• IMS • IMS is the goal for voice over LTE

• voLTE

• IMS allows a transition to Multimedia• IMS allows a transition to Multimedia• Multimedia Telephony

• Transition capabilities developed to allow transition to IMSp p• CS Fallback• SRVCCIMS C t li d S i• IMS Centralized Services

• Non‐IMS• Reg lator Ser ices• Regulatory Services• Machine Type Communications


Multimedia Telephony Services• Telephony Services Defined for Multimedia

• Originating Identification Presentation (OIP)• Originating Identification Restriction (OIR)g g ( )• Terminating Identification Presentation (TIP)• Terminating Identification Restriction (TIR)• Communication Diversion (CDIV)• Communication Hold (HOLD)• Communication Barring (CB)• Message Waiting Indication (MWI)• Conference (CONF)• Explicit Communication Transfer (ECT)• Communication Waiting (CW)• Completion of Communications to Busy Subscriber (CCBS)• Completion of Communications on No Reply (CCNR)• Customized Alerting Tone (CAT)• Customized Ringing Signal (CRS)• Personal Network Management (PNM)• Malicious Communication IDentification (MCID) • Anonymous Communication Rejection (ACR) BLUE = Applicable to mobile only• Advice Of Charge (AOC) • Reverse charging• Closed User Group (CUG) • Three‐Party (3PTY)

RED = Applicable to fixed onlyBLUE Applicable to mobile only

Multimedia Telephony Services are defined in 3GPP TS 22.173


• Flexible Alerting (FA)

EPS Migration MechanismsEPS Migration Mechanisms

• Voice• Voice Call Continuity (VCC) – Allows a basic voice call to be handed over

from IMS to circuit switched and vice‐versa (Rel 7) – Primarily focused on WiFi‐GSM handover

llb k d d f• CS Fallback – CS Voice provided over GSM or UMTS if no LTE IMS voice available (Rel 8)

• SRVCC – Provides voice continuity with only a single radio (Rel 8)l d l k l l b• IMS Centralized Services – Your services also work seamlessly between

CS and IMS (Rel 8)• Messaging

• CS Fallback – SMS carried over LTE signalling – no need to switch radio I/F (Rel 8 – improvements ongoing)

• SMS over IP – Enhancements to the gateway to integrate with OMA CPM (b i d fi d i R l 10)CPM (being defined in Rel 10)

• Video• SRVCC for video being defined in Rel 10


g

Dispelling some Myths about SLTE and IMS

• Myth 1: LTE is Data only• Myth 1: LTE is Data onlyReality: Support of voice was one of the key considerations in designing LTE. The voice solution for LTE is IMS VoIP and it is fully specified.

M th 2 SMS i ’t t d LTE• Myth 2: SMS isn’t supported over LTEReality: LTE and EPS will support a rich variety of messaging applications - including SMS. The solution is twofold, covering both the full IMS case and a transition solution for those networks that do not support IMSnot support IMS.

• Myth 3: IMS isn’t ready for prime timeReality: IMS was first developed as part of Rel 5 in 2002. It is based on IETF protocols such as SIP and SDP that are very mature These technologies have been embraced by the industry as theand SDP that are very mature. These technologies have been embraced by the industry as the signalling mechanism for multimedia applications.

• Myth 4: LTE doesn’t support emergency callsReality: VoIP support for emergency calls (incl. location) in Rel 9. A transition solution fall back to 3G/2G - has existed since IMS was introduced (Rel 5).


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Other IMS related work ongoingOther IMS related work ongoing

• Enhancements to Inter Device Transfer• Enhancements to Inter‐Device Transfer

• IMS based Home Node B

• Non‐voice Emergency Services

• Enhancements for supporting Streaming and MBMS pp g gusing IMS

• Enhancements to IMS to support videoEnhancements to IMS to support video


Non‐IMS ServicesNon IMS Services

• RegulatoryRegulatory• E‐Call (completed in Rel 8)• Public Warning System (completed in Rel 9)

• Extensible, but currently only Japan and US supported

• Prioritized packet communications

• Enhancements to the CodecEnhancements to the Codec• Rate adaptation for LTE allowed in Rel 9• Enhanced Voice Codec in Rel 10

• MTC – Machine Type Communication• Focusing on network optimizations• 14 Features identified• 14 Features identified• Rel 10 work will focus on general functionality to allow priorities for

features to stabilize


Machine Type CommunicationsMachine Type Communications

• Work started on this in Rel 10• 14 MTC Features identified

• Low Mobility• Time Controlled• Time Tolerant• Packet Switched (PS) OnlyPacket Switched (PS) Only• Small Data Transmissions• Mobile Originated Only• Infrequent Mobile Terminated• MTC Monitoring• Priority Alarm Message (PAM)• Priority Alarm Message (PAM)• Secure Connection• Location Specific Trigger• Network Provided Destination for Uplink Data• Infrequent Transmission• Group Based MTC Features

• In Rel 10, 3GPP will focus on the general functionality required to support these features• Overload control (Radio Network Congestion use case, Signalling Network Congestion use case and Core Network

Congestion use case)• Addressingg• Identifiers• Subscription control• Security


ConclusionsConclusions• 3GPP LTE is set to be the major enabler for mobile broadband

• LTE is being evolved into LTE-Advanced

• 3GPP is progressing work on all radio interface generations3GPP is progressing work on all radio interface generations

• 3GPP is also addressing a variety of key areas

Femtocells• Femtocells

• Traffic Offload

M hi 2 hi i ti• Machine 2 machine communications

• Fixed Mobile Convergence


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M I f tiMore Information

All 3GPP ifi ti d t tiAll 3GPP specifications, documents, meeting reports, etc. can be freely downloaded from www.3gpp.org

Or can be obtained from the 3GPP Organisational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)

A DVD of the full set of 3GPP specifications is pavailable


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Documents

Evolution of the 3GPP System